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<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  <script>
    var a = 3
    var b = 5
    var c = '5'

    console.log(a > b) // false
    console.log(a <= b) // true

    // js里的== 只判断值相等，不考虑类型
    console.log(b == c) // true
    // 全等：既要值相等，类型也要相同
    console.log(b === c) // false

    // 数字和字符串相加，数字会被转换为字符串，然后进行拼接
    console.log(a + c) // 35
    console.log(a+b+c) // 85
    console.log(a+c+b) // 355
    

  </script>
</body>
</html>